Abstract

Objectives: Coronary angioplasty has revolutionized the management of coronary artery disease. It has not ceased to develop to become the reference method of myocardial revascularization. The aim of our study is to evaluate the ultrasound parameters of left ventricular function after coronary angioplasty.

Patients and methods This is a prospective analytical study including patients with stable coronary artery disease with a known coronary artery anatomy programmed for coronary angioplasty. Transthoracic echocardiography was performed four hours before and seven days after myocardial revascularization.

Results: 56 patients were collected, 38 of them were male (67.9% of the cases). The mean age was 60.11±7.92 years. Modifiable cardiovascular risk factors were dominated by diabetes in 64.3% of cases, followed by hypertension in 57.1% of cases. The clinical symptoms were dominated by a typical stable angina in 53.6% of cases. At the ECG, the antero-septo-apical territory was the most affected in 52% of the cases followed by the posterior territory in 46% of the cases; the depression of the ST segment was noted in 46% and negative T waves in 32% of cases. . The left anterior descending artery was affected in 66% of cases followed by right coronary artery in 13% of cases. Echocardiography was performed in all our patients 4 hours before and 7 days after angioplasty, the EF mean was 49.68% ±12 vs 55.32±12 (p=0.0001). The early mitral diastolic velocity was improved after angioplasty 66.55±16 vs 69.7±18cm/s (p=0.02). As well as the tissue doppler, the E’ wave significantly improved 9.48±2.29 vs 10.02±3.38cm/s (p=0.02) whereas the left ventricular end diastolic diameter and end diastolic volume did not change after angioplasty

Conclusion: This work emphasizes the value of revascularization in stable coronary arteries not only to improve clinical symptomatology but also to improve left ventricular diastolic function.

Keywords: Coronary angioplasty; Diastolic dysfunction; Pulsed doppler; Tissular doppler